1 //===-- Procfs.h ---------------------------------------------- -*- C++ -*-===//
2 //
3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 // See https://llvm.org/LICENSE.txt for license information.
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6 //
7 //===----------------------------------------------------------------------===//
8 
9 // source/Plugins/Process/Linux/Procfs.h defines the symbols we need from
10 // sys/procfs.h on Android/Linux for all supported architectures.
11 
12 #include <sys/ptrace.h>
13 
14 #include "llvm/Support/Error.h"
15 
16 #include <vector>
17 
18 #ifdef __ANDROID__
19 #if defined(__arm64__) || defined(__aarch64__)
20 typedef unsigned long elf_greg_t;
21 typedef elf_greg_t
22     elf_gregset_t[(sizeof(struct user_pt_regs) / sizeof(elf_greg_t))];
23 typedef struct user_fpsimd_state elf_fpregset_t;
24 #ifndef NT_FPREGSET
25 #define NT_FPREGSET NT_PRFPREG
26 #endif // NT_FPREGSET
27 #elif defined(__mips__)
28 #ifndef NT_FPREGSET
29 #define NT_FPREGSET NT_PRFPREG
30 #endif // NT_FPREGSET
31 #endif
32 #else // __ANDROID__
33 #include <sys/procfs.h>
34 #endif // __ANDROID__
35 
36 namespace lldb_private {
37 namespace process_linux {
38 
39 /// \return
40 ///     The content of /proc/cpuinfo and cache it if errors didn't happen.
41 llvm::Expected<llvm::ArrayRef<uint8_t>> GetProcfsCpuInfo();
42 
43 /// \return
44 ///     A list of available logical core ids given the contents of
45 ///     /proc/cpuinfo.
46 llvm::Expected<std::vector<int>>
47 GetAvailableLogicalCoreIDs(llvm::StringRef cpuinfo);
48 
49 /// \return
50 ///     A list with all the logical cores available in the system and cache it
51 ///     if errors didn't happen.
52 llvm::Expected<llvm::ArrayRef<int>> GetAvailableLogicalCoreIDs();
53 
54 } // namespace process_linux
55 } // namespace lldb_private
56